feat(asset-system-editor): 新增编辑器资产管理包

packages/asset-system-editor/package.json

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+{
+  "name": "@esengine/asset-system-editor",
+  "version": "1.0.0",
+  "description": "Editor-side asset management: meta files, packing, and bundling",
+  "type": "module",
+  "main": "dist/index.js",
+  "module": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js"
+    }
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsup",
+    "build:watch": "tsup --watch",
+    "clean": "rimraf dist",
+    "type-check": "tsc --noEmit"
+  },
+  "keywords": [
+    "ecs",
+    "asset",
+    "editor",
+    "bundle",
+    "packing"
+  ],
+  "author": "yhh",
+  "license": "MIT",
+  "dependencies": {
+    "@esengine/asset-system": "workspace:*"
+  },
+  "devDependencies": {
+    "@esengine/build-config": "workspace:*",
+    "rimraf": "^5.0.0",
+    "tsup": "^8.0.0",
+    "typescript": "^5.8.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/esengine/ecs-framework.git",
+    "directory": "packages/asset-system-editor"
+  }
+}

packages/asset-system-editor/src/index.ts

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+/**
+ * Asset System Editor
+ * 资产系统编辑器模块
+ *
+ * Editor-side asset management:
+ * - Meta files (.meta) management
+ * - Asset packing and bundling
+ * - Import settings
+ *
+ * 编辑器端资产管理：
+ * - 元数据文件 (.meta) 管理
+ * - 资产打包和捆绑
+ * - 导入设置
+ */
+
+// Meta file management
+export {
+    AssetMetaManager,
+    type IAssetMeta,
+    type IImportSettings,
+    type IMetaFileSystem,
+    generateGUID,
+    getMetaFilePath,
+    inferAssetType,
+    getDefaultImportSettings,
+    createAssetMeta,
+    serializeAssetMeta,
+    parseAssetMeta,
+    isValidGUID
+} from './meta/AssetMetaFile';
+
+// Asset packing
+export {
+    AssetPacker,
+    collectSceneAssets,
+    type IPackingResult,
+    type IPackedBundle,
+    type IAssetFileReader
+} from './packing/AssetPacker';

packages/asset-system-editor/src/meta/AssetMetaFile.ts

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+/**
+ * Asset Meta File (.meta) Management
+ * 资产元数据文件 (.meta) 管理
+ *
+ * Each asset file has a companion .meta file that stores:
+ * - GUID: Persistent unique identifier
+ * - Import settings: How to process the asset
+ * - Labels: User-defined tags
+ *
+ * 每个资产文件都有一个配套的 .meta 文件，存储：
+ * - GUID：持久化唯一标识符
+ * - 导入设置：如何处理资产
+ * - 标签：用户定义的标签
+ */
+
+import { AssetGUID, AssetType } from '@esengine/asset-system';
+
+/**
+ * Meta file content structure
+ * 元数据文件内容结构
+ */
+export interface IAssetMeta {
+    /** Persistent unique identifier | 持久化唯一标识符 */
+    guid: AssetGUID;
+    /** Asset type | 资产类型 */
+    type: AssetType;
+    /** Import settings | 导入设置 */
+    importSettings?: IImportSettings;
+    /** User-defined labels | 用户定义的标签 */
+    labels?: string[];
+    /** Meta file version | 元数据文件版本 */
+    version: number;
+    /** Last modified timestamp | 最后修改时间戳 */
+    lastModified?: number;
+}
+
+/**
+ * Import settings for different asset types
+ * 不同资产类型的导入设置
+ */
+export interface IImportSettings {
+    // Texture settings | 纹理设置
+    maxSize?: number;
+    compression?: 'none' | 'dxt' | 'etc2' | 'astc' | 'webp';
+    generateMipmaps?: boolean;
+    filterMode?: 'point' | 'bilinear' | 'trilinear';
+    wrapMode?: 'clamp' | 'repeat' | 'mirror';
+    premultiplyAlpha?: boolean;
+
+    // Audio settings | 音频设置
+    audioFormat?: 'mp3' | 'ogg' | 'wav';
+    sampleRate?: number;
+    channels?: 1 | 2;
+    normalize?: boolean;
+
+    // General settings | 通用设置
+    [key: string]: unknown;
+}
+
+/**
+ * Generate a new UUID v4
+ * 生成新的 UUID v4
+ */
+export function generateGUID(): AssetGUID {
+    // Use crypto.randomUUID if available (modern browsers/Node 19+)
+    if (typeof crypto !== 'undefined' && crypto.randomUUID) {
+        return crypto.randomUUID();
+    }
+
+    // Fallback implementation
+    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
+        const r = (Math.random() * 16) | 0;
+        const v = c === 'x' ? r : (r & 0x3) | 0x8;
+        return v.toString(16);
+    });
+}
+
+/**
+ * Get meta file path for an asset
+ * 获取资产的元数据文件路径
+ */
+export function getMetaFilePath(assetPath: string): string {
+    return `${assetPath}.meta`;
+}
+
+/**
+ * Infer asset type from file extension
+ * 根据文件扩展名推断资产类型
+ */
+export function inferAssetType(path: string): AssetType {
+    const ext = path.split('.').pop()?.toLowerCase() || '';
+
+    const typeMap: Record<string, AssetType> = {
+        // Textures
+        png: 'texture',
+        jpg: 'texture',
+        jpeg: 'texture',
+        gif: 'texture',
+        webp: 'texture',
+        bmp: 'texture',
+        svg: 'texture',
+
+        // Audio
+        mp3: 'audio',
+        wav: 'audio',
+        ogg: 'audio',
+        m4a: 'audio',
+        flac: 'audio',
+
+        // Data
+        json: 'json',
+        txt: 'text',
+        xml: 'text',
+        csv: 'text',
+
+        // Scenes and prefabs
+        ecs: 'scene',
+        prefab: 'prefab',
+
+        // Fonts
+        ttf: 'font',
+        otf: 'font',
+        woff: 'font',
+        woff2: 'font',
+
+        // Shaders
+        glsl: 'shader',
+        vert: 'shader',
+        frag: 'shader',
+
+        // Custom types (plugins)
+        tilemap: 'tilemap',
+        tileset: 'tileset',
+        btree: 'behavior-tree',
+        bp: 'blueprint',
+        mat: 'material'
+    };
+
+    return typeMap[ext] || 'binary';
+}
+
+/**
+ * Get default import settings for asset type
+ * 获取资产类型的默认导入设置
+ */
+export function getDefaultImportSettings(type: AssetType): IImportSettings {
+    switch (type) {
+        case 'texture':
+            return {
+                maxSize: 2048,
+                compression: 'none',
+                generateMipmaps: false,
+                filterMode: 'bilinear',
+                wrapMode: 'clamp',
+                premultiplyAlpha: false
+            };
+
+        case 'audio':
+            return {
+                audioFormat: 'mp3',
+                sampleRate: 44100,
+                channels: 2,
+                normalize: false
+            };
+
+        default:
+            return {};
+    }
+}
+
+/**
+ * Create a new meta file content
+ * 创建新的元数据文件内容
+ */
+export function createAssetMeta(assetPath: string, overrides?: Partial<IAssetMeta>): IAssetMeta {
+    const type = overrides?.type || inferAssetType(assetPath);
+
+    return {
+        guid: overrides?.guid || generateGUID(),
+        type,
+        importSettings: overrides?.importSettings || getDefaultImportSettings(type),
+        labels: overrides?.labels || [],
+        version: 1,
+        lastModified: Date.now()
+    };
+}
+
+/**
+ * Serialize meta to JSON string
+ * 将元数据序列化为 JSON 字符串
+ */
+export function serializeAssetMeta(meta: IAssetMeta): string {
+    return JSON.stringify(meta, null, 2);
+}
+
+/**
+ * Parse meta from JSON string
+ * 从 JSON 字符串解析元数据
+ */
+export function parseAssetMeta(json: string): IAssetMeta {
+    const meta = JSON.parse(json) as IAssetMeta;
+
+    // Validate required fields
+    if (!meta.guid || typeof meta.guid !== 'string') {
+        throw new Error('Invalid meta file: missing or invalid guid');
+    }
+    if (!meta.type || typeof meta.type !== 'string') {
+        throw new Error('Invalid meta file: missing or invalid type');
+    }
+
+    // Set defaults for optional fields
+    meta.version = meta.version || 1;
+    meta.labels = meta.labels || [];
+    meta.importSettings = meta.importSettings || {};
+
+    return meta;
+}
+
+/**
+ * Validate GUID format (UUID v4)
+ * 验证 GUID 格式 (UUID v4)
+ */
+export function isValidGUID(guid: string): boolean {
+    const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+    return uuidRegex.test(guid);
+}
+
+/**
+ * Asset Meta File Manager
+ * 资产元数据文件管理器
+ *
+ * Handles reading/writing .meta files through a file system interface.
+ */
+export class AssetMetaManager {
+    private _cache = new Map<string, IAssetMeta>();
+    private _guidToPath = new Map<AssetGUID, string>();
+
+    /**
+     * File system interface for reading/writing files
+     * 用于读写文件的文件系统接口
+     */
+    private _fs: IMetaFileSystem | null = null;
+
+    /**
+     * Set file system interface
+     * 设置文件系统接口
+     */
+    setFileSystem(fs: IMetaFileSystem): void {
+        this._fs = fs;
+    }
+
+    /**
+     * Get or create meta for an asset
+     * 获取或创建资产的元数据
+     */
+    async getOrCreateMeta(assetPath: string): Promise<IAssetMeta> {
+        // Check cache first
+        const cached = this._cache.get(assetPath);
+        if (cached) {
+            return cached;
+        }
+
+        const metaPath = getMetaFilePath(assetPath);
+
+        // Try to read existing meta file
+        if (this._fs) {
+            try {
+                if (await this._fs.exists(metaPath)) {
+                    const content = await this._fs.readText(metaPath);
+                    const meta = parseAssetMeta(content);
+                    this._cache.set(assetPath, meta);
+                    this._guidToPath.set(meta.guid, assetPath);
+                    return meta;
+                }
+            } catch (e) {
+                console.warn(`Failed to read meta file: ${metaPath}`, e);
+            }
+        }
+
+        // Create new meta
+        const meta = createAssetMeta(assetPath);
+        this._cache.set(assetPath, meta);
+        this._guidToPath.set(meta.guid, assetPath);
+
+        // Save to file system
+        if (this._fs) {
+            try {
+                await this._fs.writeText(metaPath, serializeAssetMeta(meta));
+            } catch (e) {
+                console.warn(`Failed to write meta file: ${metaPath}`, e);
+            }
+        }
+
+        return meta;
+    }
+
+    /**
+     * Get meta by GUID
+     * 根据 GUID 获取元数据
+     */
+    getMetaByGUID(guid: AssetGUID): IAssetMeta | undefined {
+        const path = this._guidToPath.get(guid);
+        return path ? this._cache.get(path) : undefined;
+    }
+
+    /**
+     * Get asset path by GUID
+     * 根据 GUID 获取资产路径
+     */
+    getPathByGUID(guid: AssetGUID): string | undefined {
+        return this._guidToPath.get(guid);
+    }
+
+    /**
+     * Get GUID by asset path
+     * 根据资产路径获取 GUID
+     */
+    async getGUIDByPath(assetPath: string): Promise<AssetGUID> {
+        const meta = await this.getOrCreateMeta(assetPath);
+        return meta.guid;
+    }
+
+    /**
+     * Update meta and save
+     * 更新元数据并保存
+     */
+    async updateMeta(assetPath: string, updates: Partial<IAssetMeta>): Promise<void> {
+        const meta = await this.getOrCreateMeta(assetPath);
+
+        // Apply updates
+        Object.assign(meta, updates);
+        meta.lastModified = Date.now();
+        meta.version++;
+
+        // Update cache
+        this._cache.set(assetPath, meta);
+
+        // Handle GUID change (rare, but possible)
+        if (updates.guid && updates.guid !== meta.guid) {
+            this._guidToPath.delete(meta.guid);
+            this._guidToPath.set(updates.guid, assetPath);
+        }
+
+        // Save to file system
+        if (this._fs) {
+            const metaPath = getMetaFilePath(assetPath);
+            await this._fs.writeText(metaPath, serializeAssetMeta(meta));
+        }
+    }
+
+    /**
+     * Handle asset rename
+     * 处理资产重命名
+     */
+    async handleAssetRename(oldPath: string, newPath: string): Promise<void> {
+        const meta = this._cache.get(oldPath);
+        if (meta) {
+            // Update cache with new path
+            this._cache.delete(oldPath);
+            this._cache.set(newPath, meta);
+            this._guidToPath.set(meta.guid, newPath);
+
+            // Move meta file
+            if (this._fs) {
+                const oldMetaPath = getMetaFilePath(oldPath);
+                const newMetaPath = getMetaFilePath(newPath);
+
+                if (await this._fs.exists(oldMetaPath)) {
+                    const content = await this._fs.readText(oldMetaPath);
+                    await this._fs.writeText(newMetaPath, content);
+                    await this._fs.delete(oldMetaPath);
+                }
+            }
+        }
+    }
+
+    /**
+     * Handle asset delete
+     * 处理资产删除
+     */
+    async handleAssetDelete(assetPath: string): Promise<void> {
+        const meta = this._cache.get(assetPath);
+        if (meta) {
+            this._cache.delete(assetPath);
+            this._guidToPath.delete(meta.guid);
+
+            // Delete meta file
+            if (this._fs) {
+                const metaPath = getMetaFilePath(assetPath);
+                if (await this._fs.exists(metaPath)) {
+                    await this._fs.delete(metaPath);
+                }
+            }
+        }
+    }
+
+    /**
+     * Clear cache
+     * 清除缓存
+     */
+    clear(): void {
+        this._cache.clear();
+        this._guidToPath.clear();
+    }
+
+    /**
+     * Get all cached metas
+     * 获取所有缓存的元数据
+     */
+    getAllMetas(): Map<string, IAssetMeta> {
+        return new Map(this._cache);
+    }
+}
+
+/**
+ * File system interface for meta file operations
+ * 元数据文件操作的文件系统接口
+ */
+export interface IMetaFileSystem {
+    exists(path: string): Promise<boolean>;
+    readText(path: string): Promise<string>;
+    writeText(path: string, content: string): Promise<void>;
+    delete(path: string): Promise<void>;
+}

packages/asset-system-editor/src/packing/AssetPacker.ts

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+/**
+ * Asset Packer
+ * 资产打包器
+ *
+ * Collects and packs assets into bundles for runtime loading.
+ * 收集并将资产打包成运行时加载的包。
+ */
+
+import {
+    AssetGUID,
+    AssetType,
+    IBundleManifest,
+    IBundleAssetInfo,
+    IRuntimeCatalog,
+    IRuntimeBundleInfo,
+    IRuntimeAssetLocation,
+    IAssetToPack,
+    IBundlePackOptions
+} from '@esengine/asset-system';
+import { IAssetMeta } from '../meta/AssetMetaFile';
+
+/**
+ * Packing result
+ * 打包结果
+ */
+export interface IPackingResult {
+    /** Generated bundles | 生成的包 */
+    bundles: IPackedBundle[];
+    /** Runtime catalog | 运行时目录 */
+    catalog: IRuntimeCatalog;
+    /** Total size in bytes | 总大小 */
+    totalSize: number;
+    /** Number of assets packed | 打包的资产数量 */
+    assetCount: number;
+    /** Packing duration in ms | 打包耗时 */
+    duration: number;
+}
+
+/**
+ * Packed bundle
+ * 已打包的包
+ */
+export interface IPackedBundle {
+    /** Bundle name | 包名称 */
+    name: string;
+    /** Bundle data | 包数据 */
+    data: ArrayBuffer;
+    /** Bundle manifest | 包清单 */
+    manifest: IBundleManifest;
+}
+
+/**
+ * Asset file reader interface
+ * 资产文件读取器接口
+ */
+export interface IAssetFileReader {
+    readBinary(path: string): Promise<ArrayBuffer>;
+    readText(path: string): Promise<string>;
+    exists(path: string): Promise<boolean>;
+}
+
+/**
+ * Asset Packer
+ * 资产打包器
+ */
+export class AssetPacker {
+    private _fileReader: IAssetFileReader | null = null;
+    private _assets: IAssetToPack[] = [];
+    private _metas = new Map<AssetGUID, IAssetMeta>();
+
+    /**
+     * Set file reader for loading asset data
+     * 设置用于加载资产数据的文件读取器
+     */
+    setFileReader(reader: IAssetFileReader): void {
+        this._fileReader = reader;
+    }
+
+    /**
+     * Add asset to pack
+     * 添加要打包的资产
+     */
+    addAsset(asset: IAssetToPack, meta?: IAssetMeta): void {
+        this._assets.push(asset);
+        if (meta) {
+            this._metas.set(asset.guid, meta);
+        }
+    }
+
+    /**
+     * Add multiple assets
+     * 添加多个资产
+     */
+    addAssets(assets: IAssetToPack[]): void {
+        for (const asset of assets) {
+            this.addAsset(asset);
+        }
+    }
+
+    /**
+     * Clear all added assets
+     * 清除所有已添加的资产
+     */
+    clear(): void {
+        this._assets = [];
+        this._metas.clear();
+    }
+
+    /**
+     * Pack assets into bundles
+     * 将资产打包成包
+     */
+    async pack(options: IBundlePackOptions = { name: 'main' }): Promise<IPackingResult> {
+        const startTime = Date.now();
+
+        // Group assets for bundling
+        const groups = this._groupAssets(options);
+
+        // Pack each group into a bundle
+        const bundles: IPackedBundle[] = [];
+        const catalogAssets: Record<AssetGUID, IRuntimeAssetLocation> = {};
+        const catalogBundles: Record<string, IRuntimeBundleInfo> = {};
+
+        for (const [bundleName, assets] of groups) {
+            const packed = await this._packBundle(bundleName, assets, options);
+            bundles.push(packed);
+
+            // Add to catalog
+            catalogBundles[bundleName] = {
+                url: `assets/${bundleName}.bundle`,
+                size: packed.data.byteLength,
+                hash: await this._hashBuffer(packed.data),
+                preload: bundleName === 'core' || bundleName === 'main'
+            };
+
+            // Add asset locations
+            for (const assetInfo of packed.manifest.assets) {
+                catalogAssets[assetInfo.guid] = {
+                    bundle: bundleName,
+                    offset: assetInfo.offset,
+                    size: assetInfo.size,
+                    type: assetInfo.type,
+                    name: assetInfo.name
+                };
+            }
+        }
+
+        // Create catalog
+        const catalog: IRuntimeCatalog = {
+            version: '1.0',
+            createdAt: Date.now(),
+            bundles: catalogBundles,
+            assets: catalogAssets
+        };
+
+        const totalSize = bundles.reduce((sum, b) => sum + b.data.byteLength, 0);
+
+        return {
+            bundles,
+            catalog,
+            totalSize,
+            assetCount: this._assets.length,
+            duration: Date.now() - startTime
+        };
+    }
+
+    /**
+     * Pack assets by type (textures.bundle, audio.bundle, etc.)
+     * 按类型打包资产
+     */
+    async packByType(): Promise<IPackingResult> {
+        return this.pack({
+            name: 'main',
+            groupByType: true
+        });
+    }
+
+    /**
+     * Group assets for bundling
+     * 分组资产以便打包
+     */
+    private _groupAssets(options: IBundlePackOptions): Map<string, IAssetToPack[]> {
+        const groups = new Map<string, IAssetToPack[]>();
+
+        if (options.groupByType) {
+            // Group by asset type
+            for (const asset of this._assets) {
+                const bundleName = this._getBundleNameForType(asset.type);
+                const group = groups.get(bundleName) || [];
+                group.push(asset);
+                groups.set(bundleName, group);
+            }
+        } else {
+            // Single bundle
+            groups.set(options.name, [...this._assets]);
+        }
+
+        // Handle max size splitting
+        if (options.maxSize) {
+            const splitGroups = new Map<string, IAssetToPack[]>();
+
+            for (const [name, assets] of groups) {
+                let currentSize = 0;
+                let partIndex = 0;
+                let currentGroup: IAssetToPack[] = [];
+
+                for (const asset of assets) {
+                    const assetSize = asset.data?.byteLength || 0;
+
+                    if (currentSize + assetSize > options.maxSize && currentGroup.length > 0) {
+                        splitGroups.set(`${name}_${partIndex}`, currentGroup);
+                        partIndex++;
+                        currentGroup = [];
+                        currentSize = 0;
+                    }
+
+                    currentGroup.push(asset);
+                    currentSize += assetSize;
+                }
+
+                if (currentGroup.length > 0) {
+                    const finalName = partIndex > 0 ? `${name}_${partIndex}` : name;
+                    splitGroups.set(finalName, currentGroup);
+                }
+            }
+
+            return splitGroups;
+        }
+
+        return groups;
+    }
+
+    /**
+     * Get bundle name for asset type
+     * 获取资产类型的包名称
+     */
+    private _getBundleNameForType(type: AssetType): string {
+        const typeGroups: Record<string, string[]> = {
+            textures: ['texture'],
+            audio: ['audio'],
+            data: ['json', 'text', 'binary', 'scene', 'prefab'],
+            fonts: ['font'],
+            shaders: ['shader', 'material'],
+            tilemaps: ['tilemap', 'tileset'],
+            scripts: ['behavior-tree', 'blueprint']
+        };
+
+        for (const [bundleName, types] of Object.entries(typeGroups)) {
+            if (types.includes(type)) {
+                return bundleName;
+            }
+        }
+
+        return 'misc';
+    }
+
+    /**
+     * Pack a single bundle
+     * 打包单个包
+     */
+    private async _packBundle(
+        name: string,
+        assets: IAssetToPack[],
+        _options: IBundlePackOptions
+    ): Promise<IPackedBundle> {
+        const assetInfos: IBundleAssetInfo[] = [];
+        const dataChunks: ArrayBuffer[] = [];
+        let currentOffset = 0;
+
+        // Load and pack each asset
+        for (const asset of assets) {
+            let data = asset.data;
+
+            // Load data if not provided
+            if (!data && this._fileReader) {
+                try {
+                    data = await this._fileReader.readBinary(asset.path);
+                } catch (e) {
+                    console.warn(`[AssetPacker] Failed to load asset: ${asset.path}`, e);
+                    continue;
+                }
+            }
+
+            if (!data) {
+                console.warn(`[AssetPacker] No data for asset: ${asset.guid}`);
+                continue;
+            }
+
+            // Align to 4 bytes
+            const padding = (4 - (data.byteLength % 4)) % 4;
+            const paddedSize = data.byteLength + padding;
+
+            assetInfos.push({
+                guid: asset.guid,
+                name: asset.name,
+                type: asset.type,
+                offset: currentOffset,
+                size: data.byteLength
+            });
+
+            // Add data with padding
+            dataChunks.push(data);
+            if (padding > 0) {
+                dataChunks.push(new ArrayBuffer(padding));
+            }
+
+            currentOffset += paddedSize;
+        }
+
+        // Combine all data
+        const totalSize = dataChunks.reduce((sum, chunk) => sum + chunk.byteLength, 0);
+        const bundleData = new Uint8Array(totalSize);
+        let offset = 0;
+
+        for (const chunk of dataChunks) {
+            bundleData.set(new Uint8Array(chunk), offset);
+            offset += chunk.byteLength;
+        }
+
+        // Create manifest
+        const manifest: IBundleManifest = {
+            name,
+            version: '1.0',
+            hash: await this._hashBuffer(bundleData.buffer),
+            compression: 'none',
+            size: bundleData.byteLength,
+            assets: assetInfos,
+            dependencies: [],
+            createdAt: Date.now()
+        };
+
+        return {
+            name,
+            data: bundleData.buffer,
+            manifest
+        };
+    }
+
+    /**
+     * Hash a buffer using SHA-256
+     * 使用 SHA-256 哈希缓冲区
+     */
+    private async _hashBuffer(buffer: ArrayBuffer): Promise<string> {
+        // Use Web Crypto API if available
+        if (typeof crypto !== 'undefined' && crypto.subtle) {
+            const hashBuffer = await crypto.subtle.digest('SHA-256', buffer);
+            const hashArray = Array.from(new Uint8Array(hashBuffer));
+            return hashArray.map(b => b.toString(16).padStart(2, '0')).join('').slice(0, 16);
+        }
+
+        // Fallback: simple hash
+        const view = new Uint8Array(buffer);
+        let hash = 0;
+        for (let i = 0; i < view.length; i++) {
+            hash = ((hash << 5) - hash) + view[i];
+            hash = hash & hash;
+        }
+        return Math.abs(hash).toString(16).padStart(16, '0');
+    }
+}
+
+/**
+ * Collect assets referenced by a scene
+ * 收集场景引用的资产
+ */
+export async function collectSceneAssets(
+    sceneData: unknown,
+    _metaManager: { getPathByGUID: (guid: AssetGUID) => string | undefined }
+): Promise<AssetGUID[]> {
+    const guids = new Set<AssetGUID>();
+
+    // Recursively find all GUID references
+    function findGUIDs(obj: unknown): void {
+        if (!obj || typeof obj !== 'object') return;
+
+        if (Array.isArray(obj)) {
+            for (const item of obj) {
+                findGUIDs(item);
+            }
+            return;
+        }
+
+        const record = obj as Record<string, unknown>;
+
+        // Check for GUID fields
+        for (const [key, value] of Object.entries(record)) {
+            if (key.endsWith('Guid') || key.endsWith('GUID') || key === 'guid') {
+                if (typeof value === 'string' && isValidGUID(value)) {
+                    guids.add(value);
+                }
+            } else if (typeof value === 'object') {
+                findGUIDs(value);
+            }
+        }
+    }
+
+    findGUIDs(sceneData);
+    return Array.from(guids);
+}
+
+/**
+ * Validate GUID format
+ * 验证 GUID 格式
+ */
+function isValidGUID(guid: string): boolean {
+    const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
+    return uuidRegex.test(guid);
+}

packages/asset-system-editor/tsconfig.json

@@ -0,0 +1,36 @@
+{
+    "compilerOptions": {
+        "target": "ES2020",
+        "module": "ESNext",
+        "lib": ["ES2020", "DOM", "DOM.Iterable"],
+        "declaration": true,
+        "declarationMap": true,
+        "outDir": "./dist",
+        "rootDir": "./src",
+        "strict": true,
+        "esModuleInterop": true,
+        "skipLibCheck": true,
+        "forceConsistentCasingInFileNames": true,
+        "moduleResolution": "node",
+        "resolveJsonModule": true,
+        "isolatedModules": true,
+        "noEmit": false,
+        "experimentalDecorators": true,
+        "emitDecoratorMetadata": true,
+        "sourceMap": true,
+        "noImplicitAny": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "strictBindCallApply": true,
+        "strictPropertyInitialization": true,
+        "noImplicitThis": true,
+        "alwaysStrict": true,
+        "noUnusedLocals": true,
+        "noUnusedParameters": true,
+        "noImplicitReturns": true,
+        "noFallthroughCasesInSwitch": true,
+        "allowSyntheticDefaultImports": true
+    },
+    "include": ["src/**/*"],
+    "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.spec.ts"]
+}

packages/asset-system-editor/tsup.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from 'tsup';
+
+export default defineConfig({
+    entry: ['src/index.ts'],
+    format: ['esm'],
+    dts: true,
+    clean: true,
+    sourcemap: true,
+    external: ['@esengine/asset-system']
+});